But oh no! Pop their head off and they just go insane XD!
One of my favorite things to do in the original game was walk up on the ones that were laying on the ground trying to trick you, shoot a stasis field onto them, and then shoot them. It was funny, because as they came up in slow-mo, doing their slow-mo growl, you could blow off enough limbs to kill it before it was all the way up, and then it just falls right back down and dies.